1834 - Thomas Davenport of Vermont developed the first real electric motor ('real' meaning powerful enough to do a task) although Joseph Henry and Michael Faraday created early motion devices using electromagnetic fields.
Below is a more detailed usage of operating systems according to age group: 18 to 34 years old. Of all the smartphone users, 50% use Android as operating system, 43% use iPhone, 39% use Microsoft and 38% use RIM. Apparently, more users prefer Android.
The clock is ticking on Windows 7. Microsoft's most popular desktop operating system, Windows 7, commands almost 61 percent of the desktop market (according to Netmarketshare). But the OS is scheduled for end of life in four and a half years â in January 2020.